All the kids from Room 2B are on fire to get their first glimpse of the school's mysterious new teacher, Mr. Skooghammer. With a name like that and a job as the head of the Dungeon (a.k.a. the Suspension Room), it's no wonder everyone's interested in Mr. Skooghammer--and even more interested to see whether or not Harry will become his first prisoner.

It's almost summer vacation and the students in room 2B are having trouble concentrating on their butterfly project, until a frightening-looking new teacher comes to supervise the Suspension Room and Harry is sent there as punishment for unruly behavior.